States of Matter Quiz

Which state of matter has a fixed shape?

• Solid

• Liquid

• Gas

Answer explanation

The solid state of matter has a fixed shape because its particles are closely packed together and vibrate in place, maintaining a definite form. In contrast, liquids and gases do not have fixed shapes.

Which state of matter takes the shape of its container but has a fixed volume?

• Solid

• Liquid

• Gas

Answer explanation

A liquid takes the shape of its container while maintaining a fixed volume. Unlike gases, which expand to fill their container, liquids have a definite volume but can flow to fit the shape of their surroundings.

Which of these can flow easily?

• Solid

• Liquid

• Both liquid and gas

Answer explanation

Liquids and gases can flow easily due to their molecular structure, allowing them to change shape and move freely. Solids, on the other hand, maintain a fixed shape and do not flow.

Which state of matter fills the entire space available?

• Solid

• Liquid

• Gas

Answer explanation

Gas fills the entire space available because its particles are far apart and move freely, unlike solids and liquids, which have fixed shapes and volumes. This property allows gases to expand and occupy any container.

Which of these is an example of a solid?

• Water

• Ice

• Oxygen

Answer explanation

Ice is the solid form of water, while water is a liquid and oxygen is a gas at room temperature. Therefore, ice is the correct example of a solid.

Water is an example of a ____.

• Solid

• Liquid

• Gas

Answer explanation

Water is a clear example of a liquid, as it flows and takes the shape of its container. Unlike solids, which have a fixed shape, and gases, which expand to fill their space, liquids maintain a constant volume.

Which state of matter has no fixed shape and no fixed volume?

• Solid

• Liquid

• Gas

Answer explanation

Gas is the state of matter that has no fixed shape and no fixed volume, allowing it to expand and fill any container. In contrast, solids have a fixed shape and volume, while liquids have a fixed volume but take the shape of their container.

Which of these is a gas?

• Milk

• Air

• Ice

Answer explanation

Air is a mixture of gases, primarily nitrogen and oxygen, making it the correct choice. Milk is a liquid, and ice is a solid, so they do not qualify as gases.

When water is heated, it turns into ____.

• Ice

• Steam

• Oil

Answer explanation

When water is heated, it undergoes a phase change from liquid to gas, resulting in steam. Ice is formed from freezing, and oil is a different substance altogether.

Which of these takes the shape of the container?

• Solid

• Liquid

• Both solid and liquid

Answer explanation

Liquids take the shape of their container because their particles can move freely, allowing them to flow and fill the available space. Solids, on the other hand, maintain a fixed shape and do not conform to the container.